My NES vs Nestopia Undead Edition

My NES is a portable, open-source NES and Famicom emulator for Windows, written in C#. It emulates NES processing, supports NTSC, PALB and DENDY formats, and implements about 97% of known documented mappers. The project says it passes most known hardware behavior tests, although some games may fail because of an unimplemented mapper or emulation bug. A built-in launcher organizes games, shows information from NesCart DB, and records ratings and play time. Users can save and load states, take snapshots, record game audio and use Game Genie. Four-player joypads work through a keyboard, joystick or Xbox 360 controller. Video can be upscaled beyond Full HD. The emulator is multithreaded, and the project reports 60 fps on older Windows machines. My NES is.NET freeware under GNU GPL version 3, listed at free. It usually runs after extracting a portable package and stores settings and user files in Documents. Requirements include.NET Framework 4, DirectX and Microsoft C++ Runtime.

Nestopia Undead Edition is a free graphical interface project for the Nestopia emulator, aiming to provide a standalone GUI. The maker’s site lists version 1.99.0 as released, and the project identifies its license as GPL-2.0. The product platform listing names Linux, macOS and Windows, while the supported-platform listing names Windows. The repository includes source required to build the legacy Win32 release; for future GUI work, it points to a cross-platform build under the Jolly Good Emulation project. Nestopia UE supports save states, rewind, netplay, shader support and cheats. For a Nestopia-format cheat database, the project points users to Mighty Mo’s Cheat Code Pack. The project no longer maintains the emulator core and directs core emulation issues upstream. Contributions are reviewed when they relate to standalone GUI builds. Code outside a tagged release is described as volatile, so development work not included in a tagged release may change. The listed plan is free, with no stated price or usage limits.